Means for securing collars to spindles



E. B. CBOCKER.

MEANS FOR SECURING COLLARS T0 SPINDLES.

APPLICATION FlLE D MAY 8, I919- Patented Dec. 28,1920.

UNITED "STATES PATENT orrics.

ERNEST B. CROCKEE, OF STRATFORD, CONNECTICUT, ASSIGNOR TO MANNING,MAXWELL MOORE, INC., OF-NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

Specification of Letters Patent.

MEANS FOR SECURING COLLARS TO SPINDLES.

Patented Dec. 28, 1920.

Application filed May 8, 1919. Serial No. 295,538.

To all whom it may concern: 7

Be it known that I, ERNEST B. CnooKER, a citizen of the United States,residing at Stratford, county of Fairfield, State of Connecticut, havemade a certain new and useful Invention in Means for Securing Collars toSpindles, of which the following is a specification.

This invention relates to means for securing a collar to its spindle.

The object of the invention is to provide means which are simple andefiicient for securing collars to their spindles.

A further. object of the invention is to.

with my invention with a collar indicated in dotted lines appliedthereto ready to be secured thereon.

Fig. 2 is a broken view showing the valve spindle and collar assembledthereon, the latter being in section, and ready to be secured.

Fig. 3 is a view in section of the collar.

Fig. 4: is a view similar to Fig. 2 showing the collar after it issecured to the spindle.

Fig. 5 is a broken .yiew in side elevation showing the collar andspindle assembled and secured together. v

The samepart is designatedby the same reference numeral wherever itoccurs throughout the several views.

Heretofore it has been .a common practice, in assembling collars ontheir spindles, to turn down the, long end of the spindle, to a diameterless than that of its short end, to thereby form "a shoulder, againstwhich abuts the end of the spindle sleeve. or collar, the collar beingformed tubular to slip over the valve stem and the end portion thereofthe shearing strength of the collar when applied andsecured to thespindle.

7 in assembling the parts.

fits against the shoulder on the spindle.

This practice necessitates the expense of turning. down the long end ofthe spindle with the incident increase in the cost of manufacture of theassembly. Moreover, the shoulder against which the collar abuts isnecessarily of limited area, and by reason of this, and of the furtherfact that the bearmg of the collar against-the shoulder is in a straightline parallel with the axis of the spindle, when pressure is applied. to

the collar in a direction to force it against Y the spindle shoulder anundue shearing strain is imposed. It is among the special 4 purposes ofmy present invention to avoid the added expense of turning down theentire length of the long end of the spindle and at the same timeincreasing the abutment area of the .shoulder and increasing In carryingout my invention, instead of turning down the entire length of the longend of the spindle 7 I form at .a suitable point in the length of thespindle an annular groove 6 to form a shoulder 8. The

surface of the annular groove 6 in the form shown is gradually curvedfrom the shoulder 8 lengthwise of thespindle and outwardly to theperipheral surface of the spindle. The collar 9' is formed with therounded or ball bearing surface 10, wh ch is the working face of thecollar, andwith an annular collar 11 of reduced exterior diameter. Thebore of the collar is ofsuch dimension as to slip easily over thespindle the collar upon the spindle the collar is slipped along thespindle until the collar 11 reaches the annular groove 6. The sleeve 11of the collar is then forced into the annular groove 6 by any suitablemeans, such for example, as a properly shaped die, and as clearlyindicated in Fig. 4.

With the collar and spindle assembled as described and the collarsecured to the spindle by forcing the sleeve 11 thereof into the groove6, as shown in Fig. 4, 1t w1ll be seen that pressure applied to theworking face of surface, 10 of the collar tends to force the sleeve 11inwardly or into the an-. nular groove 6 thereby increasing the shear-In assembling and spindle as above described is equal to that of thesolid spindle. In other words,

that the spindle Wlll bend under compression'before the collar willshear on the shoulder in the spindle.

By the construction above described I am enabled to usefor the valvespindles ordinary drawn stock which requires no imachining or turningdown other than that required for applying the thread 12 and the annulargroove 6 thereto, thus substantially reducing the cost of constructionwhile at the same time securin a strong and efficient joint between thecol ar and its spindle.

Having now set forth the objects and 7 nature of my invention and aconstruction embodying the principles thereof, what I movement in havingan annular groove formed therein,

said groove being deeper at one end than at the other, of a collarfitting upon said spindle and having a sleeve portion formed in tegrallytherewith, said-sleeve portion en circling said spindle and adapted tobe forced into said groove to hold said collar against endwise movementin either direction upon said spindle.

3. The combination with a spindle having an" annular groove to form ashoulder, of a collar fitting upon said spindle and having a sleeveportion formed integrally therewith, said sleeve portion encircling saidspindle and adapted to-be forced into said roove the end of said sleeveortionabut= g 9 P either direction upon said spindle.

ERNEST is. cnboKER.

